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OG12——40题求助
40题的正确句子是:
Dr. Tonegawa won the Nobel Prize for discovering how the body can constantly change its genes to fashion a seemingly unlimited number of antibodies, each targeted specifically at an invading microbe or foreign substance.
最后一句话不需要一些which什么的作为定语从句么,这样一个句子里面不是出现了两个单独的小句? |
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